Chalk Group Lithostratigraphy: Northern England - Longwood Marl: Revision history

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11 October 2013

  • curprev 13:0013:00, 11 October 2013‎ Dbk talk contribs‎ 572 bytes +572‎ Created page with "This is a c. 60 mm thick, grey marl containing silt and compacted clay, and occurs in the upper part of the Flamborough Sponge Beds (Whitham, 1993). '''Macrofossil Biozonatio..."
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